Unable to launch xserver-xephyr under ubuntu dapper amd64

[Byron Shelden]

Reporting here as this is where the bug report link took me.
Immediate segmentation fault when trying to invoke:

:~$ Xephyr :5
Segmentation fault
:~$

if I try to specify screen geometry, I get an fpe instead.

:~$ Xephyr -screen 1024x768 :5
Floating point exception
:~$

In both cases the window does display for a split second before the crash. I can make it stay put a moment if I invoke in gdb, but since the executable was stripped, I can't provide anything more.

Edit: The process creates the lock file under /tmp before it dies

[kv11111 (kv11111)]

Created an attachment (id=7149)
Fixes crash of Xephyr on amd64

[kv11111 (kv11111)]

Created an attachment (id=7150)
Fixes KD_MAX_KEYCODE value (and crash in certain environments)

[Byron Shelden (bshelden-deactivatedaccount)]

Reporting here as this is where the bug report link took me.
Immediate segmentation fault when trying to invoke:

:~$ Xephyr :5
Segmentation fault
:~$

if I try to specify screen geometry, I get an fpe instead.

:~$ Xephyr -screen 1024x768 :5
Floating point exception
:~$

In both cases the window does display for a split second before the crash. I can make it stay put a moment if I invoke in gdb, but since the executable was stripped, I can't provide anything more.

[Tollef Fog Heen (tfheen)]

I can confirm this; will attach backtrace.

[Tollef Fog Heen (tfheen)]

Xephyr apport log attached.

[David Faure (faure)]

I can confirm that the patch
(https://bugs.freedesktop.org/attachment.cgi?id=7149) works here (kubuntu-6.10,
amd64).
But stdint.h is only C99 so this might not be a very portable fix.

[Martin Ellis (martin-ellis)]

Added the upstream bug number to this BR.
There's a patch on the Freedesktop Bugzilla, but I haven't tested it (yet).

It's not clear to me whether it's actually been applied upstream...

[Daniel Stone (daniels)]

Sorry about the phenomenal bug spam, guys. Adding xorg-team@ to the QA contact so bugs don't get lost in future.

[Mike McQuaid (mikemcquaid)]

Has a patch been put in GIT to fix this?
Gentoo downstream is looking for an "official" patch before inclusion.

[Julien Cristau (jcristau)]

(In reply to comment #5)
> Has a patch been put in GIT to fix this?
> Gentoo downstream is looking for an "official" patch before inclusion.
>
it's in the master branch:
http://gitweb.freedesktop.org/?p=xorg/xserver.git;a=commit;h=68d39d8571d8717d26cedc84015d537549520a14

[William McVey (wam)]

I'm having the same floating point exception detailed in this bug report. Looks like the upstream maintainers have within the past week applied a fix to their master branch. Details are at https://bugs.freedesktop.org/show_bug.cgi?id=8417

[Timo Aaltonen (tjaalton)]

William: do you still have the problem with Feisty? It should have the patch that debian/fedora has.

[Mike McQuaid (mikemcquaid)]

I see the named bug is still in xorg-server-1.3 even after thought that patch has been applied to the tree for 1.3.

Any news/updates?

[Bryce Harrington (bryce)]

Fixed in xserver 1.3 in Gutsy.

[Dodji (dodji)]

Okay I will close the bug for now, as it seems to have been fixed by http://gitweb.freedesktop.org/?p=xorg/xserver.git;a=commit;h=68d39d8571d8717d26cedc84015d537549520a14 .